1 /*
2  * arch/sh/drivers/pci/ops-snapgear.c
3  *
4  * Author:  David McCullough <davidm@snapgear.com>
5  *
6  * Ported to new API by Paul Mundt <lethal@linux-sh.org>
7  *
8  * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
9  *
10  * May be copied or modified under the terms of the GNU General Public
11  * License.  See linux/COPYING for more information.
12  *
13  * PCI initialization for the SnapGear boards
14  */
15 #include <linux/kernel.h>
16 #include <linux/types.h>
17 #include <linux/init.h>
18 #include <linux/pci.h>
19 #include "pci-sh4.h"
20 
pcibios_map_platform_irq(struct pci_dev * pdev,u8 slot,u8 pin)21 int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
22 {
23 	int irq = -1;
24 
25 	switch (slot) {
26 	case 8:  /* the PCI bridge */ break;
27 	case 11: irq = 8;  break; /* USB    */
28 	case 12: irq = 11; break; /* PCMCIA */
29 	case 13: irq = 5;  break; /* eth0   */
30 	case 14: irq = 8;  break; /* eth1   */
31 	case 15: irq = 11; break; /* safenet (unused) */
32 	}
33 
34 	printk("PCI: Mapping SnapGear IRQ for slot %d, pin %c to irq %d\n",
35 	       slot, pin - 1 + 'A', irq);
36 
37 	return irq;
38 }
39